Force Calculator (F = ma)
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In physics, work (W) is the energy transferred when a force moves an object through a distance: W = F × d × cos(θ) where θ is the angle between force and displacement. Work is measured in joules. Positive work adds energy; negative work removes it.
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Pro Tip
The work-energy theorem is powerful: to find an object's speed after being pushed, calculate the net work done on it, set equal to ΔKE = ½mv² − ½mv₀², and solve for v.
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Did You Know?
Carrying a heavy box across a flat room does zero work in the physics sense — the force (up) is perpendicular to displacement (horizontal), so cos(90°) = 0. Your muscles tire from holding the box, but no mechanical work is done on the box.
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